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Message: <blockquote data-quote="NXcoupe" data-source="post: 622492" data-attributes="member: 11751">Where are you located? Ok, had a customer do this, 02 GT, put small cams, comp 270's I believe or smaller, cold air from Anderson, different mass air meter from ProM, 24 lb injectors, long tubes and off road H pipe, cat back, throttle body 75mm and plenum from accufab or Prof Prod, can't remember. Made 300.4 rwhp and a little less torque. It took me a while to get there tuning it because the car started out with 200 hp. I had to take his ebay meter off and put a ProM on it, and worked the tune, getting all the retards to stop pulling timing out. Finally made three pulls all within a hp or two and all around 300 hp. He also holds the claim to the most improved on my dyno, but gaining nearly 100 hp with tuning.  Your a/f ratio is not correct. It isn't even in the same ballpark with correct. Your car is not supercharged or poweradded, so it should be leaner. Your timing can't be very high at all. If you are close enough I can get you tuned and running the way it should, otherwise, just go back and make them get it right. just my .02 worh.</blockquote>